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Finding the Fourth Proportional to 43,204.80, 64,814.40 and 16,910.40

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Solution

The fourth proportional to 43,204.80, 64,814.40 and 16,910.40 is: 25,368.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,204.80 : 64,814.40 = 16,910.40 : x
  2. Step 2: Convert to fraction form
    43,204.80/64,814.40 = 16,910.40/x
  3. Step 3: Cross multiply
    43,204.80x = 64,814.40 × 16,910.40
  4. Step 4: Simplify right side
    43,204.80x = 1,096,037,429.76
  5. Step 5: Solve for x
    x = 1,096,037,429.76/43,204.80
  6. Step 6: Final answer
    x = 25,368.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.